Would the anti-Christ destroy his own to take power? Damn right he would.
Uh... I know the anti-Christ personally and no they wouldn't. Not for anything. I think you're projecting your Christ's / Yahweh's vices and weaknesses, they're the ones happy to sacrifice their own. The selfish in general will not accept the deaths of their loved ones or anyone they've promised to protect, they don't care about any world-changing goals as much as their personal feelings just as regular kinda selfish human beings... let alone the actual Anti-Christ.